Receptacle for incandescent electric lamps.



A. P. SEYMOUR.

REGEPTAGLE FOR INOANDESGENT ELECTRIC LAMPS. APPLIGATION'FILBDMAR.15, 1905.

PATENTED APR. 10, 1906.

1" 15 4 6 1 WITNESSES; 19 9 W j, INVENTOR.

- UNITED STATES rear13m OFFICE.-

ALBERT P. SEYMOUR, or SYRACUSE, NEW- YoaK,;Ass1eNoR "To PASS a.

. snrMous, INCORPORATED, OF TION-OE NEW YORK;

SOIlVAY, NEW YORK, A CORPORA- REoEPTAcLE FOR mcANoEs cENr :LE'TRI'Q LAMPS.

Specification of Letters Patent. Application filed March 16,1905. Serial No. 250,164.

patented April 10,1906.

' vcuse, in the county of Onondaga and Stateof NewYork, have invented certain new and useful Improvements in'Receptacles for Incandescent Electric Lamps; and I do hereby declare the followin to be a full, clear, and exact description 0 the invention, such as will enable .others skilled in the art to which .it appertains to make and use the same.

My invention relates to receptacles for incandescent lamps; and it consists in. a new construction of receptacle which is strong, compact, easily and firmly secured in lace,

and when so installed presents a sight y ex- ,terior, all the securing-screws and connections being covered and well protected from short circuit and leakage of current.

It consists, essentially, of two parts made of porcelain or other suitable insulatin material, a base carrying the Wire terminas and first secured firmly in position by one or more securing screws; The base is of s'ufiicient length to permit good se aration between the metallic parts and en 'ciently thick to be strong enough to carry the cover and to have long side walls over which there is little dan- The cover almost completely ger of leakage. covers and protects the base, to which it is "secured by a single screw, and is so proportioned as-to leave an open channel of consid -erable size 'between'its inner surface and the base, forming an insulating air-space. All the metallic connections between the parts are positively insulated by walls of insulating material.

I have shown a desirable embodiment of invention in the drawings herewith, in,

m wl iich the reference-numerals of the specification indicate the corresponding parts in all the figures.

Figure I is an end elevation of my receptacle. Fig. II is a cross'section at right anglcs to the preceding. Figs. III and IV are respectively top plans of the assembled receptacle and of the cover. Figs. V and VI are respectively plan and side elevations of the base. Fig. VII shows a base made for one securing-screw only.

In the figures, 1 indicates the base, practically rectangular in form, having tips 2 3 of:

unequal size; sid projections-4. 4 for supporting in recesses 5 6 the wire terminals 8 9, hav ing-their outer ends slightly bent up the better to retain the wires under the bindingposts and secured to the base b whose heads may be covered, wit insulatin cement. The wire terminals are positive y separated bythe curved wall 12. The base deeplarger portions that the screw-heads may be surik thereinto givegood separation from the nearest metallic part.

at the ends notches 22 23 of unequal size respectively to fit the tips 2 3 and guide the assembling of the parts in proper relations. In the mouth of the cap aresecured the lampterminals 25 and 26, of which the-outer ter- 'minal 25 is securedby screws 27 and nuts 28, one of which carries a resilient contact-piece 29 to make contact with one of the wire terminals when the parts are assembled. The central terminal 26 is held in place bythe sin-' gle screw 31, which also connects that terminal to the opposite wir'e terminal and firmly secures the cap to the base. On the upper surface of the cap the tubular portion 32 is formed to fit within the curved wall 12 positively to insulate this connecting-screw. To the screw is fitted a short coil of wire toretain the screw in the hole and prevent loss thereof when the parts are not assembled. It will be understood that, if desired, the split washer forming the central terminal may be central terminal.

as those may be varied without departing from the spirit of my invention.

. By my invention I produce a receptacle well adapted foruse in many locations, such as cornices, 800. While the base is sufficiently large to obtain strength and good separation closed within the margin of a cap of moderate size, so as to becompact. The base is first firmly secured in position and the cover firml whic has also electrical functions. It 'wil be observed that the side air-spaces give the omitted and the head of the screw act as such I do 'not desire to limit myself to the exact form and arrangement of parts here shown,

screws 10, r

is secured in position by one or two securin screws, fitting screw holes 13, made w t 20 indicates the cover, having margin 21 entirely surrounding the base, but having between the parts, it is not too large to be inattached thereto by the single screwi r65 best insulation and insure against the collectmake connection therewith and to secure the cover to the base, said cover having notches su having marginal side walls to cover and protect t air-channels between said we ls and the base,

- an outer terminal arranged in said mouth, 3

- one of said screws on the upper surface of the electric connections therewith and firmly to secure the cover to the base.

' and thin tips at each end of different widths,

ters Patent, is

.said lamp-terminal on the cover, a resilient of saidlamp terminal screws and adapted to 'ing of dust, moisture, &c., andthat the math tallic connections between the parts are positively separated by insulating projections and corresponding depressions. th

- Having thus described my invention, what I claim as new, and desire to secure by Letth 1. In an electric receptacle, the combiner fit tion with a orcelain base having end ti s of unequal width, of wire terminals on the as'e, a curved wall separating the wire terminals, screws to secure the base to the support, a porcelain cover to cover and protect the base, amp-terminals on the cover, a connection between one of said lamp-terminals and one of the wire terminals, and a sin le screw forming the opposite lamp-termina and engaging with theopposite wire terminal to in its ends of unequal size to engage with the end tips on thebase.

2. In an electric receptacle, the combination with a porcelain base, of wire terminals wi secured on the base, a screw, or screws, to secure the base independently in position, a orcelain cover adapted to fit around the base havinga mouth to receive the lamp-base, ed

screws securing said outer terminalin position, th a resilient contact-piece secured inposition by cover to make contact with one of said wire terminals, and a single screw forming the cen tral lamp-terminal and adapted to engage of with the opposite wire terminal to make 3. In an electric receptacle, the combination with a substantially rectangularv porcelain receptacle of greatest thickness at its central portion, having projections on each side wire terminalssecured in recesses on the base and having their binding-screws and outer ends supported on the respective projections, said outer endsbeing bent slightly upwardly, screws to secure the base on its support, a porcelain cover having a marginsurrounding the base, said margin having end notches adapted respectively to fit the base-tips, an outer. lamp-terminal on the cover, screws securing co contact-piece secured to the inner end of one make contact withone of the wire terminals th when the parts are assembled, a central lampth faces being formed with correspondingv pro- .terminal ada on the cover, and a single screw ted to secure said central lamp-terminal in in p ace to engage with one of the lampterrni-. nals, the cover and base on their adjacent surj ections and depressions positively to insu ate tion with a e metallic parts, and the cover and base be- 111g so pro ortioned as to leave 0 en channels between t e inner surface of t ecover and e side projections on the base.

4. In a device of the character described,

e combination with a base of insulating material, ofa cover of insulating material to overjthe base,'said cover havm side-margins extending substantially flus with the upper surface of the base, wire terminals on the base and metallic parts on the cover for making connection between the wire terminals and the translating device, and air-chem nels between the margins of the cover and the sides of the base, open from end to end, .to

insulate the wire terminals and the wires from the sup ort. 5. In an e ectric receptacle, the combinaorcelam base, of a porcelain cover bstantial y equal in length to the base and e sides of the base, 0 en, insulating,

re terminals on the base, lamp-terminals on the cover, and metallicconnections between the lamp-terminals and the wire termlnals, sald metallic connectwns being adaptto secure the cover to the base. 6. In a device of the character described, e combination with a base of msuiatlng ma- -terial, of a cover of insulating material having side margins to eXtend/alon the sides of the base, open, insulating air-c annels between the margins of the cover and the sides the base, wire terminals on the base extending over said air-channels, lamp-termi nals 011 the cover, and metallic parts forseeurmg the coveron the b'ase'and for making connection between the lamp-terminals and. the wire terminals.

7. In an electric receptacle,'the combina tion with an elongated porcelain base, of wire terminals. secured on. the base, a screw, or screws, to secure the base in position, a orcelain cover provided with a margin to nt substantially" around the base and having a mouth to receive the lamp-base, an outer tar minal arranged in said mouth, screws secnring said outer terminal in position, a contact piece secured in position by one of said screws on the upper surface of the cover to make.

ntact with one of said wire terminals, and

a sin is screw forming the central lampter mina and adapted to engage with the -eppcsite wire terminal to make e ectric connection erewith and firmly to secure the cover e base.

In testimony whereof I 21% my signature presence of two witnesses.

ALBERT P. SEYMOUR.

Witnesses:

CARL ALEX. JOHNSON, GARNETT YOUNG. 

